After watching a streamer on the Twitch playing ΔV, I began questioning my HUD scaling.
Things I've tested, and observed::
On either monitor 1920x1080> HUD scaling slider makes no changes for last 4 ticks.
On second monitor 1600x900> Last six ticks make no change.
With 1080p resolution, the HUD is still quite large, and takes up very large amounts of screen real estate.